Re: Is SuperColumn necessary?

2010-05-09 Thread Jonathan Shook
I'm not sure this is much of an improvement. It does illustrate, however, the desire to couch the concepts in terms that each is already comfortable with. Nearly every set of terms which come from an existing system will have baggage which doesn't map appropriately. Not that the "sparse multidimens

Re: Is SuperColumn necessary?

2010-05-08 Thread David Boxenhorn
Guys, this is beginning to sound like MUMPS! http://en.wikipedia.org/wiki/MUMPS In MUMPS, all variables are sparse, multidimensional arrays, which can be stored to disk. It is an arcane, and archaic, language (does anyone but me remember it?), but it has been used successfully for years. Maybe we

Re: Is SuperColumn necessary?

2010-05-07 Thread Ed Anuff
On Thu, May 6, 2010 at 11:10 PM, Mike Malone wrote: > > The upshot is, the Cassandra data model would go from being "it's a nested > dictionary, just kidding no it's not!" to being "it's a nested dictionary, > for serious." Again, these are all just ideas... but I think this > simplified > data m

Re: Is SuperColumn necessary?

2010-05-06 Thread Mike Malone
On Thu, May 6, 2010 at 5:38 PM, Vijay wrote: > I would rather be interested in Tree type structure where supercolumns have > supercolumns in it. you dont need to compare all the columns to find a > set of columns and will also reduce the bytes transfered for separator, at > least string conca

Re: Is SuperColumn necessary?

2010-05-05 Thread Stu Hood
10 1:31pm To: u...@cassandra.apache.org Subject: Re: Is SuperColumn necessary? Follow-up from last weeks discussion, I've been playing around with a simple column comparator for composite column names that I put up on github. I'd be interested to hear what people think of this approach.